"The courts must adapt to the reality of e-commerce with its potential for abuse by those who would take the property of others and sell it through the borderless electronic web of the internet," Fenlon wrote.

"That (injunction) is necessary ... to ensure that the defendants cannot continue to flout the court's orders."

It's one of a growing body of legal decisions struggling to balance rights and responsibilities of technology companies operating across global boundaries.

In agreeing to hear the case, Canada's highest court defined those questions as follows:

"Under what circumstances may a court order a search engine to block search results, having regard to the interest in access to information and freedom of expression, and what limits (either geographic or temporal) must be imposed on those orders?"

"Do Canadian courts have the authority to block search results outside of Canada's borders?"

"Under what circumstances, if any, is a litigant entitled to an interlocutory injunction against a non-party that is not alleged to have done anything wrong?

Lowest common-denominator law

Observers say the court will have to balance a company's duty to one locally aggrieved plaintiff in relation to the millions of law-abiding customers in other parts of the world.

European courts have ruled that Google has to give citizens the so-called 'right-to-be-forgotten': forcing the search engine to remove old, irrelevant links about people on request. Should Canadians have the same right?

Just this week, Apple CEO Tim Cook vowed to fight an order which would force the company to open the iPhone of one of the shooters who killed 14 people in San Bernadino, Calif. last December.

Apple chief executive Tim Cook says an order to unlock an Iphone would create a backdoor that could potentially be used on other future devices. (Richard Drew/Associated Press)

Apple says it has complied with requests to help the FBI, but says the courts shouldn't force the company to build technology which could have global privacy implications.

The San Francisco-based Electronic Frontier Foundation intervened in the Equustek case along with the Canadian Civil Liberties Association. They argued the worldwide injunction could lead to lowest-common denominator law, where technology companies like Google are forced to respond to restrictive judgments from courts in countries like Saudi Arabia.

One Washington-based technology writer suggested B.C. could become a destination for 'censorship tourism' — where people would travel from other countries with the specific goal of obtaining worldwide rulings.

Hysteria vs reality

But Equustek lawyer Robbie Fleming has characterized that reaction as hysteria.

He wouldn't comment on the issue ahead of the Supreme Court of Canada hearing, but spoke with CBC following the 2015 B.C. Court of Appeal decision.

At that time, Fleming said the case was not about local morality, but about well-established rules of international intellectual property.

Fleming says those laws are similar country to country, and the worldwide injunction is aimed at protecting his client's rightful claim to the profits arising from their property.

The appeal court ruling agreed, noting the narrow focus of the issue which was actually at play in the Equustek case, as opposed to the greater fears raised by the intervenors.

"There is no evidence that the websites in question have ever been used for lawful purposes, nor is there any reason to believe that the domain names are in any way uniquely suitable for any sort of expression other than the marketing of the illegal product," the ruling said.

"Of course, if the character of the websites changes, it is always open to the defendants or others to seek a variation of the injunction."

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